<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>动态添加文件上传列表</title>
    <link th:href="@{/login/css/bootstrap.min.css}" rel="stylesheet">
    <script type="text/javascript" th:src="@{/login/js/jquery.min.js}"></script>
</head>
<body>
<div th:if="${uploadStatus}" style="color:#ff0000" th:text="${uploadStatus}">
    上传成功</div>
    <form th:action="@{/uploadFile}" method="post" enctype="multipart/form-data">
        上传文件:&nbsp;&nbsp;<input type="button" value="添加文件" onclick="add()"/>
        <div id="file" style="margin-top: 10px;" th:value="文件上传区域"></div>
        <input id="submit" type="submit" value="上传" style="display: none;margin-top: 10px;">
    </form>
<script>
    function add(){
        var innerdiv = "<div>";
        innerdiv = innerdiv +"<input type='file' name='multipartFile' required='required'>"+
                    "<input type='button' value='删除' onclick='remove(this)'>";
        innerdiv = innerdiv +"</div>";
        $("#file").append(innerdiv);
        //打开上传按钮
        $("#submit").css("display","block");
    }
    //删除当前行div
    function remove(obj){
        $(obj).parent().remove();
        if($("#file div").length==0){
            $("#submit").css("display","none");
        }
    }
</script>
</body>
</html>
